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Module 11

QuestionAnswer
Name the four fundamental forces in creation. Which two forces are really different aspects of the same force? the gravitational force, the weak force, the strong force and the electromagnetic force. The electromagnetic force and the weak force are really different facets of the same force.
Which is the weakest of the fundamental forces? Which is the strongest? The weakest force is the gravitational force. The strongest one is the strong force.
Name the three principles of Newton's Universal Law of Gravitation. The first one is ... 3 principles Principle 1 1. All objects with mass are attracted to one another by the gravitational force.
2nd Principle of Newton's Universal Law of Gravitation 2. The gravitational force between two masses is directly proportional to the mass of each object.
3rd Principle of Newton's Universal Law of Gravitation 3. The gravitational force between two masses is inversely proportional to the square of the distance bet. 2 objects
The grav. force bet. 2 objects (mass1=10kg, mass2=6kg) is mesa. when the objects are 10 cm apart. If the 10 kg mass is replaced with a 20 kg mass and the 6 kg mass is replaced with a 12 kg mass, how does the new grav. force compare to the first 1 meas.? When the 10 kg mass is replaced by a 20 kg mass, the mass doubled. This doubles grav force. The 6 kg is doubled to 12 kg. Doubles grav force. Total change is 2x2=4. The new grav force, this is 4 times larger than old one.
The grav force bet 2 objects (mass1=10kg, mass2=6kg) is measured when the objects are 10 cm apart. If the dis bet them incr to 40 cm, how does the new grav attraction compare to first one? The distance bet objects was multiplied by 4. The force is divided by 4 squared, which is 16. The new grav force, is 16 times smaller than the old one.
The gra force bet 2 objects (mas1=1 kg, mass2=2kg) is mesa when the objects are 12 cm apart. If the 1 kg mass is replaced with a 5 kg mass, the 2 kg mass is replaced with a 4 kg mass, and the dis bet is red to 4 cm, how does the new grav force compare? The new grav force, then is 90 times larger than the old one.
If Venus orbits the sun because the sun exerts a gravitational force on it, what is the equal and opposite force required by Newton's Third Law of Motion? The equal and opposite force is the gravitational force that Venus exerts on the sun.
What kind of force is necessary for circular motion? Centripetal force is required for circular motion.
Centripetal force The force necessary to make an object move in a circle. It is directed perpendicular to the velocity of the object, which means it points toward the center of the circle.
What are the three principles of circular motion? 1. Circular motion requires centripetal force. 2. The larger the centripetal force, the faster an object travels in a circle of a given size. 3. At a given speed, the larger the centripetal force, the smaller the circle.
Centrifugal force It is a myth. There is no such force. The supposed effect of centrifugal force is just Newton's First Law.
List the inner planets Mercury Venus earth Mars
Outer planets Jupiter Saturn Uranus Neptune
List the planets of the solar system from the closest to the sun to the farthest from the sun. Mercury Venus earth Mars Jupiter Saturn Uranus Neptune
List the planets that have rings. Saturn Uranus Jupiter Neptune
Where are most of the asteroids in the solar system? Most of the asteroids are between the orbits of Mars and Jupiter. In the asteroid belt.
What causes an asteroid to become a meteor? Perturbations in its orbit cause an asteroid to become a meteor.
What are three parts of a comet? Which of those parts is always present in a comet? A comet is made of a nucleus, a coma, and a tail. The nucleus is always present.
During what part of a comet's orbit are all three parts present? All three parts of a comet are present when the comet is close to the sun.
Are comets' orbits circular or elliptical? Comet orbits are elliptical.
Where do most physicists think short-period comets come from? Physicists think that short-period comets come from a mass of objects called the Kuiper belt.
What causes gravity, according to Einstein's Theory of General Relativity? Gravity is caused by the fact that objects with mass bend space and time - according to General Relativity
What causes gravity, according to the graviton theory? According to graviton theory, gravity is caused by the exchange of particles called "gravitons."
Created by: davisjuring
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